* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: system-ui, "Open Sans", sans-serif;
}

html, body {
  background: #f5f5f5;
  display: flex;
  height: 100vh;
  justify-content: center;
  align-items: center;
}

/* Card container */
.container {
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 16px;
  width: 90%;
  min-width: 400px;
  background: white;
  padding: 28px;
  border-radius: 20px;
  box-shadow: 0 6px 24px rgba(0,0,0,0.08);
}

/* Buttons (Material 3 inspired) */
.btn {
  display: inline-block;
  padding: 14px 20px;
  border-radius: 999px;
  font-size: 16px;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
}

/* Filled button */
.btn-primary {
  background: #6750A4;
  color: white;
}

.btn-primary:hover {
  background: #5a4494;
  box-shadow: 0 4px 12px rgba(103,80,164,0.3);
}

/* Outlined button */
.btn-outline {
  background: transparent;
  color: #6750A4;
  border: 2px solid #6750A4;
}

.btn-outline:hover {
  background: rgba(103,80,164,0.08);
}

/* Full width buttons */
.btn-block {
  width: 100%;
}

/* Form */
form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

/* Inputs */
input {
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid #ccc;
  font-size: 16px;
  outline: none;
  transition: all 0.2s ease;
}

input:focus {
  border-color: #6750A4;
  box-shadow: 0 0 0 3px rgba(103,80,164,0.15);
}

/* Heading */
h2 {
  font-weight: 600;
  margin-bottom: 8px;
}